USCF player statistics

O'Connor, Oliver Z

USCF 32630002MarylandLatest available supplement: Sep 2026
Official US Chess record
Rating format

Regular rating

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105011751300Dec 2025: 1244 (provisional)Jan 2026: 1161 (provisional)Feb 2026: 1084 (provisional)Mar 2026: 1196 (provisional)Apr 2026: 1140 (provisional)May 2026: 1111 (provisional)Dec 2025May 2026
Published supplement ratings. Lines connect available observations; they do not show individual tournament results.

Published ratings by supplement

All available formats. P indicates a provisional rating.

Monthly USCF ratings for O'Connor, Oliver Z
SupplementRegularQuick
Sep 2026——
Aug 2026——
Jul 2026——
Jun 2026——
May 20261,111 P1,088 P
Apr 20261,140 P1,116 P
Mar 20261,196 P1,178 P
Feb 20261,084 P1,068 P
Jan 20261,161 P1,142 P
Dec 20251,244 P1,248 P

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About these statistics

These pages use the USCF supplements available to Chess67. Ratings can change between monthly publications. Missing months do not mean a player was inactive. For current ratings and tournament history, consult the official US Chess record.

National USCF statisticsMaryland USCF statistics